Vehicle body, connecting structure of chemical bin, vehicle and assembling method of vehicle body

Abstract

The invention discloses a vehicle body, a connecting structure of a chemical bin, a vehicle and an assembling method of the vehicle body. The vehicle body comprises a chemical bin, the chemical bin defines a containing space used for containing the battery monomers and a top opening communicated with the containing space, the chemical bin is provided with a sealing area and a mounting point, and the sealing area extends around the top opening and is used for being in sealing fit with a matching component so that the matching component can cover the top opening. The mounting point is used for mounting the chemical bin and is positioned outside an area enclosed by the sealing area. According to the technical scheme, the matching part is in sealing fit with the sealing area of the chemical bin, and the mounting point of the chemical bin is located outside the area defined by the sealing area, so that the smoothness and continuity of the sealing face are improved, sealing is not prone to being affected by other parts, sealing is easier to achieve, and the sealing effect is better. Influence factors easily causing sealing failure in the area defined by the sealing area are reduced, and the sealing reliability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a connection structure of a vehicle body and a chemical chamber, and an assembly method of the vehicle and the vehicle body. Background Art

[0002] In the related art, there are many factors that affect the sealing failure of the chemical chamber, which makes the chemical chamber prone to sealing failure and reduces the sealing reliability. Summary of the invention

[0003] An embodiment of the present invention provides a vehicle body that can reduce factors that may cause chemical chamber sealing failure.

[0004] In a first aspect, an embodiment of the present invention provides a vehicle body, comprising: a chemical chamber, wherein the chemical chamber defines a storage space for accommodating a battery cell and a top opening connected to the storage space, wherein the chemical chamber is provided with a sealing area and a mounting point, the sealing area extends around the top opening and is used to seal with a mating component so that the mating component covers the top opening, and the mounting point is used for the installation of the chemical chamber, and the mounting point is located outside the area enclosed by the sealing area.

[0005] In the above technical solution, the sealing area of ​​the chemical chamber is sealed by matching components, and the installation point of the chemical chamber is located outside the area enclosed by the sealing area, which is beneficial to improving the smoothness and continuity of the sealing surface, and the seal is not easily affected by other components, making it easier to achieve sealing, reducing the influencing factors that may easily lead to sealing failure in the area enclosed by the sealing area, and improving the sealing reliability.

[0006] In some embodiments, the sealing area is a smooth surface.

[0007] In the above technical solution, the smooth surface can achieve continuous sealing between different areas of the chemical chamber and matching components such as the front floor, improve the continuity of the sealing surface, and reduce factors causing sealing failure.

[0008] In some embodiments, the vehicle body further comprises a sealing ring, wherein the sealing ring is in sealing contact with the sealing area.

[0009] In the above technical solution, the sealing effect of the chemical chamber can be greatly improved by providing a sealing ring, making it easier to meet the waterproof and dustproof requirements.

[0010] In some embodiments, the mounting point includes a mounting hole for mounting a fastener, and the fastener is used to apply a locking force in an up-and-down direction to the chemical chamber to compress the sealing area.

[0011] In the above technical solution, by applying a locking force in the up and down directions to the chemical chamber through fasteners, the compression force between the sealing area of ​​the chemical chamber and the matching parts such as the front floor can be increased, thereby improving the sealing effect to facilitate meeting the waterproof and dustproof requirements.

[0012] In some embodiments, the mounting point includes a first mounting point, the first mounting point being configured to engage with the mating component.

[0013] In the above technical solution, the chemical chamber is connected to the mating component via the first installation point. On the one hand, the installation of the chemical chamber can be realized, and the first installation point is located outside the sealing area to reduce the sealing failure factors inside the sealing area; on the other hand, the first installation point of the chemical chamber is directly connected to the mating component, which has a more significant effect on improving the sealing between the chemical chamber and the mating component.

[0014] In some embodiments, the mounting point includes a second mounting point for connection with a sill beam.

[0015] In the above technical solution, the chemical chamber is connected to the threshold beam via the second mounting point. The first mounting point and the second mounting point cooperate to increase the connection points of the chemical chamber, which can improve the installation stability of the chemical chamber and is beneficial to improving the sealing effect of the sealing area.

[0016] In some embodiments, the chemical chamber includes a side beam, a first protruding portion arranged at the upper part of the outer peripheral surface of the side beam, and a second protruding portion arranged at the lower part of the outer peripheral surface of the side beam, the sealing area is arranged on the upper end surface of the side beam, the first mounting point is arranged at the first protruding portion, and the second mounting point is arranged at the second protruding portion.

[0017] In the above technical solution, the first convex part and the second convex part are respectively arranged at the upper part and the lower part of the outer peripheral surface of the side beam, so that the connection with the door sill beam and the floor does not interfere with each other, and the chemical chamber can be installed in a larger range in the up and down directions, thereby improving the installation stability. At the same time, the first convex part and the second convex part are conducive to improving the structural strength of the side beam and improving the anti-collision performance.

[0018] In some embodiments, the vehicle body further includes a floor, which is the matching component and seals with the sealing area to cover the top opening, and the floor extends continuously from a portion opposite to an area enclosed by the sealing area.

[0019] In the above technical solution, the floor and the chemical tank can be sealed and connected before the car body and the upper body are assembled, which is easy to improve the convenience of sealing operation and the sealing effect. In addition, the airtightness test between the floor and the chemical tank does not need to be tested together with the white body, and the general assembly workshop does not need to develop a chemical tank test line and a repair line, which is conducive to improving the production cycle and reducing costs and working hours.

[0020] In some embodiments, the floor comprises a front floor, and a connection portion connected to a door sill beam is provided on an outer periphery of the front floor, and the connection portion is located outside an area enclosed by the sealing area.

[0021] In the above technical solution, by locating the connecting part outside the area enclosed by the sealing area, the connecting structure of the connecting part can have no effect on the sealing of the chemical chamber, the failure of the sealing of the connecting part will not lead to the failure of the sealing of the chemical chamber, and the height difference of the connecting part will not affect the difficulty of sealing the chemical chamber.

[0022] In some embodiments, the mounting point includes a third mounting point, which is used to connect to the front panel, and the floor includes a first mating edge that is at least partially located outside the area enclosed by the sealing area, and the upper surface of the first mating edge is used to relatively mate with the lower surface of the front panel.

[0023] In the above technical solution, the third installation point can be used to install and fix the chemical chamber from the front side, thereby improving the stability of the chemical chamber and the uniformity of the force applied to the chemical chamber in the circumferential direction.

[0024] In some embodiments, the chemical chamber includes a side beam and a third outer protrusion arranged on the upper part of the outer peripheral surface of the side beam, the sealing area is arranged on the upper surface of the side beam, and the third mounting point is arranged on the third outer protrusion.

[0025] In the above technical solution, the third mounting point is closer to the sealing area, which is more conducive to improving the sealing effect of the sealing area. In addition, the third mounting point is arranged on the third outer protrusion, which facilitates the installation operation at the third mounting point. The third outer protrusion can also improve the structural strength of the side beam and improve the anti-collision performance.

[0026] In some embodiments, the mounting point includes a fourth mounting point, which is used to connect to the rear floor. The floor includes a front floor, and the front floor includes a second mating edge that is at least partially located outside the area enclosed by the sealing area. The upper surface of the second mating edge is used to relatively mate with the lower surface of the rear floor.

[0027] In the above technical solution, the fourth installation point can be used to install and fix the chemical chamber from the rear side, thereby improving the stability of the chemical chamber and the uniformity of the force applied to the chemical chamber in the circumferential direction.

[0028] In some embodiments, the chemical chamber includes a side beam and a fourth outer protrusion arranged on the upper part of the outer peripheral surface of the side beam, the sealing area is arranged on the upper surface of the side beam, and the fourth mounting point is arranged on the fourth outer protrusion.

[0029] In the above technical solution, the fourth installation point is closer to the sealing area, which is more conducive to improving the sealing effect of the sealing area. In addition, the fourth installation point is arranged on the fourth outer protrusion, which facilitates the installation operation at the fourth installation point. The fourth outer protrusion can also improve the structural strength of the side beam and improve the anti-collision performance.

[0030] In some embodiments, the vehicle body includes a front cabin assembly and a rear floor assembly, the chemical chamber is connected between the front cabin assembly and the rear floor assembly, and the chemical chamber is suitable for detachable connection with the upper body of the vehicle, and the upper body includes the matching component.

[0031] In the above technical solution, the chemical chamber is detachably connected to the upper vehicle body, and the upper vehicle body includes matching parts, so that the chemical chamber can be separated from the upper vehicle body when the chemical chamber needs to be repaired, thereby separating the chemical chamber from the matching parts, and facilitating the repair of the chemical chamber.

[0032] In some embodiments, the vehicle body includes a front cabin assembly, a front floor assembly and a rear floor assembly, the front floor assembly is connected between the front cabin assembly and the rear floor assembly, the front floor assembly includes the mating component, and the chemical chamber is located on the lower side of the front floor assembly and is detachably connected to the front floor assembly.

[0033] In the above technical solution, when the chemical tank is being inspected and repaired, the chemical tank can be removed from the vehicle body and separated from the matching parts to achieve the disassembly of the chemical tank. The disassembly process is not affected by the parts inside the passenger compartment, and there is no need to disassemble the parts inside the passenger compartment, thereby simplifying the disassembly and assembly process.

[0034] In a second aspect, an embodiment of the present invention further provides a connection structure of a chemical chamber, comprising: a chemical chamber, which defines a storage space for accommodating a battery cell and a top opening connected to the storage space; a matching component, which covers the top opening; a sealing ring, which is arranged between the matching component and the chemical chamber and extends around the top opening, wherein the matching component extends continuously from a portion opposite to the area enclosed by the sealing ring.

[0035] In the above technical solution, the top opening of the chemical chamber is sealed by the matching component, and the portion of the matching component relative to the area enclosed by the sealing ring extends continuously, which can reduce the factors affecting the sealing failure between the matching component and the chemical chamber and improve the sealing reliability.

[0036] In some embodiments, the chemical chamber is provided with an installation point, which is used to connect with at least one of the mating component and the front panel, and the installation point is located outside the area enclosed by the sealing ring; and / or, the mating component includes a front floor and is provided with a connection point, which is used to connect with at least one of the door sill beam, the rear floor and the front panel, and the connection point is located outside the area enclosed by the sealing ring.

[0037] In the above technical solution, the joints at the parts of the matching components and the chemical chamber opposite to the area enclosed by the sealing area can be reduced, and the flatness can be improved, which is also beneficial to reduce the factors affecting the sealing failure and improve the sealing reliability.

[0038] In a third aspect, an embodiment of the present invention further provides a vehicle, comprising an upper vehicle body and the above-mentioned vehicle body, wherein the vehicle body is arranged at the lower side of the upper vehicle body; or comprising a connection structure of the above-mentioned chemical chamber.

[0039] In the above technical solution, the factors that may easily lead to sealing failure in the area enclosed by the sealing area can be reduced, thereby improving the sealing reliability.

[0040] In a fourth aspect, an embodiment of the present invention further provides an assembly method for the above-mentioned vehicle body, the assembly method comprising: sealingly matching the sealing area of ​​the chemical chamber with a mating component to cover the top opening of the chemical chamber; connecting the mounting point of the chemical chamber with at least one of the mating component and the front panel to compress the sealing area.

[0041] In the above technical solution, the matching component is sealed with the chemical chamber, and the chemical chamber is connected through the installation point to compress the sealing area, so that the sealing effect can be improved and the waterproof and dustproof requirements can be met. At the same time, the connection structure of the installation point is located outside the area enclosed by the sealing area. After the assembly is completed, the factors that cause the sealing failure between the matching component and the chemical chamber can be reduced, and the sealing reliability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a partial structural schematic diagram of a vehicle body provided by an embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of a chemical chamber, a front floor assembly, a rear floor and a front wall panel provided in an embodiment of the present invention;

[0044] Figure 3 It is a partial structural schematic diagram of a chemical chamber, a front floor and a threshold beam provided in an embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of the partial matching structure of the chemical chamber and the front panel provided in an embodiment of the present invention;

[0046] Figure 5It is a schematic diagram of the partial coordination structure of the chemical chamber and the rear floor provided in an embodiment of the present invention;

[0047] Figure 6 Schematic diagram of a vehicle provided in an embodiment of the present invention.

[0048] Reference numerals:

[0049] Vehicles 1000;

[0050] Car body 100; upper car body 200;

[0051] Front cabin assembly 10; front wall panel 11; first panel body 111; first reinforcement panel 112;

[0052] Front floor assembly 20; front floor 21; connecting portion 211; first mating edge 212; second mating edge 213; door sill beam 22;

[0053] Rear floor assembly 30; rear floor 31; second plate body 311; second reinforcement plate 312;

[0054] Chemical chamber 40; containing space 401; sealing area 402; first outer protrusion 41; second outer protrusion 42; third outer protrusion 43; fourth outer protrusion 44; side beam 45;

[0055] Mounting point 50; first mounting point 51; second mounting point 52; third mounting point 53; fourth mounting point 54;

[0056] Battery cell 60;

[0057] Sealing ring 70; fastener 80; seat mounting beam 90. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the present invention and the specification of the invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0060] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The term "and / or" in the present invention is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0063] In the embodiments of the present invention, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present invention shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation to the present invention.

[0064] The term "plurality" used in the present invention refers to two or more (including two).

[0065] From the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electrical devices such as vehicles, ships or aircraft. Batteries and other components can constitute the power supply system of the electrical device to ensure the safety and reliability of the use of the electrical device. For example, electrical devices can be, but are not limited to, vehicles, mobile phones, tablets, laptops, ships, spacecraft, electric toys and electric tools, etc. Vehicles can be fuel vehicles, gas vehicles, new energy vehicles, or rail vehicles. New energy vehicles can be pure electric vehicles, hybrid vehicles, plug-in hybrid vehicles, extended-range electric vehicles, and fuel cell powered vehicles, etc.

[0066] For a vehicle, the body in white is a carrier for installing and carrying the engine, seats, air conditioning system and other components of the vehicle. The body in white may include an upper body and a vehicle body. The upper body refers to the part of the vehicle used to carry people and cargo, for example, it may include a cockpit, a passenger compartment, etc. The vehicle body may include a front cabin assembly, a chemical compartment and a rear floor assembly. It is understood that in the description of this application, the directions such as up, down, left, right, front and back are all based on the direction of the vehicle.

[0067] The front cabin assembly is used to transfer the front collision load. For example, the front cabin assembly may include a front anti-collision beam, two front longitudinal beams and two front torque boxes. The front ends of the two front longitudinal beams are respectively connected to the two ends of the front anti-collision beam, and the rear ends of the two front longitudinal beams are respectively connected to the two front torque boxes, and the front torque boxes are connected to the chemical chamber. When the vehicle is hit, the front anti-collision beam can evenly bear the expansion load, and share the collision load through the two front longitudinal beams and the corresponding two front torque boxes to reduce damage to the passenger compartment.

[0068] The rear floor assembly is a mounting carrier for system parts such as interior and exterior decorations, electrical appliances, etc. It has the important functions of carrying passengers, placing spare tires, and reducing damage to the fuel tank and reducing passenger injuries by deforming itself during a rear-end collision. For example, the rear floor assembly may include a rear anti-collision beam, two rear longitudinal beams, two rear torsion boxes, and a rear cross beam. The rear ends of the two rear longitudinal beams are respectively connected to the two ends of the rear anti-collision beam, the front ends of the two rear longitudinal beams are respectively connected to the two rear torsion boxes, the rear torsion box is connected to the battery assembly, and the rear cross beam connects the two rear torsion boxes. The upper body includes the rear floor or the rear floor assembly includes the rear floor, so that the rear floor can be installed between the two rear longitudinal beams.

[0069] A chemical compartment refers to a physical module that includes one or more battery cells to provide higher voltage and capacity. For example, a chemical compartment can define a storage space for accommodating one or more battery cells or battery modules to reduce or avoid the impact of liquids or other foreign matter on the charging or discharging of battery cells. In addition, the chemical compartment can not only be used to accommodate battery cells, but also can be used to connect with structures such as the front cabin assembly and the rear floor assembly as a part of the vehicle body to bear weight and transmit force.

[0070] The battery cell may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc., which is not limited in the embodiments of the present invention. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present invention. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which is not limited in the embodiments of the present invention.

[0071] For example, a battery cell may include a housing, an electrode assembly, and an electrolyte, wherein the housing is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator. A battery cell mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet.

[0072] For the chemical warehouse, it is necessary to provide a relatively closed space for the battery cells to meet certain waterproof and dustproof requirements, such as meeting the IP68 protection level. In the related technology, the front floor and the upper cover of the chemical warehouse are combined into one, and the sealing structure of the front floor is used to achieve the sealing of the chemical warehouse, which is difficult to meet the protection level requirements of the chemical warehouse. In the sealing structure of the front floor, there is a height difference between the side sealing area and the front and rear sealing areas, which reduces the continuity of the sealing surface; and the front floor is composed of multiple parts, the lap joints of the parts are uneven, there are many joints, and the accuracy of the sealing surface is difficult to guarantee. The lap joints, welding points, bolt mounting holes, etc. on the front floor have become factors affecting the failure of the seal, which makes the chemical warehouse seal easy to fail.

[0073] Based on this, the present application proposes a vehicle body 100, including a chemical chamber 40, wherein the chemical chamber 40 defines a receiving space 401 for receiving a battery cell 60 and a top opening connected to the receiving space 401. The chemical chamber 40 is provided with a sealing area 402 and a mounting point 50, wherein the sealing area 402 extends around the top opening and is used to seal with a matching component so that the matching component covers the top opening, and the mounting point 50 is used for the installation of the chemical chamber 40, and the mounting point 50 is located outside the area enclosed by the sealing area 402.

[0074] In the vehicle body 100 of the above-mentioned structure, the sealing cooperation with the sealing area 402 of the chemical chamber 40 is achieved through matching components, and the installation point 50 of the chemical chamber 40 is located outside the area enclosed by the sealing area 402, which is beneficial to improving the smoothness and continuity of the sealing surface, and the seal is not easily affected by other components, making it easier to achieve sealing, reducing the influencing factors that may easily lead to sealing failure in the area enclosed by the sealing area 402, and improving the sealing reliability.

[0075] The vehicle body 100 disclosed in the embodiment of the present invention can be used for a vehicle 1000, which can be a fuel vehicle, a gas vehicle, a new energy vehicle, a rail vehicle, etc., wherein the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, a plug-in hybrid vehicle, an extended-range electric vehicle, a fuel cell powered vehicle, etc.

[0076] Hereinafter, a vehicle body 100 according to an embodiment of the present invention will be described with reference to the drawings.

[0077] Please refer to Figure 1-Figure 5 , Figure 1 is a partial structural schematic diagram of a vehicle body 100 provided in an embodiment of the present invention; Figure 2 Schematic diagram of a chemical chamber 40, a front floor assembly 20, a rear floor 31 and a front wall panel 11 provided in an embodiment of the present invention; Figure 3 It is a partial structural schematic diagram of the chemical chamber 40, the front floor 21 and the threshold beam 22 provided in an embodiment of the present invention; Figure 4 It is a schematic diagram of the partial matching structure of the chemical chamber 40 and the front panel 11 provided in an embodiment of the present invention; Figure 5 It is a schematic diagram of the partial matching structure of the chemical chamber 40 and the rear floor 31 provided in an embodiment of the present invention. The vehicle body 100 includes the chemical chamber 40, which defines a receiving space 401 for receiving the battery cell 60 and a top opening connected to the receiving space 401. The chemical chamber 40 is provided with a sealing area 402 and a mounting point 50, wherein the sealing area 402 extends around the top opening and is used to seal with a matching component so that the matching component covers the top opening, and the mounting point 50 is used for the installation of the chemical chamber 40, and the mounting point 50 is located outside the area enclosed by the sealing area 402.

[0078] The matching component may be a cover or a floor of the vehicle 1000. The floor may be the front floor 21 or the rear floor 31, or the front floor 21 and the rear floor 31 may cover the top opening together. The following description will be made by taking the front floor 21 and the sealing area 402 as an example to cover the top opening. According to the following description, the solution of covering the top opening by other matching components is understandable to those skilled in the art.

[0079] The chemical chamber 40 defines a storage space 401 and a top opening, so that the chemical chamber 40 is formed as a chamber body without an upper cover. In the embodiment where the front floor 21 covers the top opening, the front floor 21 replaces the upper cover in the related art to achieve the sealing of the storage space 401, so as to protect the battery cells 60 and the like in the storage space 401.

[0080] The front floor 21 refers to a floor used for installing seats, armrest boxes and other components in the passenger compartment and for being stepped on by passengers. By using the front floor 21 to cover the top opening of the chemical chamber 40, the upper cover of the chemical chamber 40 can be omitted, the number of components can be reduced, and the vertical space occupied can be reduced, providing more space for the installation of the battery cells 60 in the chemical chamber 40, thereby facilitating the improvement of energy density. The front floor 21 can be integrated into the upper body 200 or the body 100.

[0081] In addition, the sealing area 402 of the chemical chamber 40 can be the surface, groove, protrusion, etc. of the chemical chamber 40, as long as it can achieve the sealing between the chemical chamber 40 and the matching parts. In addition, the sealing area 402 and the matching parts can be directly contacted and sealed, or can be sealed by auxiliary accessories such as a sealing ring 70, which are all within the protection scope of the present invention. In the embodiment of sealing by the sealing ring 70, the vehicle body 100 can include the sealing ring 70, or the upper vehicle body 200 can include the sealing ring 70.

[0082] The chemical chamber 40 forms a seal directly with the mating parts such as the front floor 21, rather than using the sealing structure between the mating parts and other parts of the vehicle body 100 or between the mating parts and other parts of the upper vehicle body 200 to achieve the sealing of the chemical chamber 40. This makes it easier to improve the sealing effect and the smoothness and continuity of the sealing surface. The sealing area 402 is not affected by other parts of the vehicle body 100 and the upper vehicle body 200, which is beneficial to improving the sealing continuity and reducing the factors affecting the sealing failure.

[0083] The installation point 50 of the chemical chamber 40 refers to a position for installing and fixing the chemical chamber 40 on the vehicle body 100 or the upper vehicle body 200, and the installation methods include but are not limited to welding, clamping, connection with fasteners 80, etc. The chemical chamber 40 can be connected to other components of the vehicle body 100 or components of the upper vehicle body 200 through the installation point 50, for example, connected to at least one of the front floor 21, the door sill beam 22, the front wall panel 11, and the rear floor 31, so as to realize the installation of the chemical chamber 40.

[0084] And, if Figure 3-Figure 5 As shown, the installation point 50 is located outside the area enclosed by the sealing area 402 to reduce the joints between the mating parts and the parts of the chemical chamber 40 that are opposite to the area enclosed by the sealing area 402, improve the flatness, and also help reduce the factors affecting the sealing failure and improve the sealing reliability.

[0085] For example, in some embodiments, the mating component such as the floor extends continuously relative to the area enclosed by the sealing area 402. In other words, no process holes are set in this part of the floor, and no sealing or blocking is required, thereby reducing the area where the seal is prone to failure and improving the sealing reliability.

[0086] According to the vehicle body 100 of the embodiment of the present invention, the installation point 50 of the chemical chamber 40 is located outside the area enclosed by the sealing area 402, which is beneficial to improving the smoothness and continuity of the sealing surface, and the seal is not easily affected by other components, making it easier to achieve sealing, reducing the influencing factors that may easily lead to sealing failure in the area enclosed by the sealing area 402, and improving the sealing reliability.

[0087] In some embodiments, the sealing area 402 is a smooth surface. The smooth surface can be a plane, that is, different positions of the sealing area 402 are coplanar to eliminate height differences; the smooth surface can also be a surface with height differences in different areas and connected by arc surfaces. This can achieve continuous sealing between different areas of the chemical chamber 40 and the matching parts, improve the continuity of the sealing surface, and reduce the factors of sealing failure.

[0088] In some embodiments, Figure 3-Figure 5 As shown, the vehicle body 100 includes a sealing ring 70, which is in sealing contact with the sealing area 402 and is used to seal the gap between the chemical chamber 40 and the matching component such as the front floor 21. The material of the sealing ring 70 includes but is not limited to rubber, silicone, etc. The sealing ring 70 can be an independent component arranged between the chemical chamber 40 and the matching component, or can be formed by curing the glue between the chemical chamber 40 and the matching component. By providing the sealing ring 70, the sealing effect between the chemical chamber 40 and the matching component can be greatly improved, and it is easier to meet the waterproof and dustproof requirements.

[0089] In some embodiments, Figure 3-Figure 5 As shown, the mounting point 50 includes a mounting hole for mounting a fastener 80, and the fastener 80 is used to apply a locking force in the up-down direction to the chemical chamber 40 to compress the sealing area 402. The fastener 80 includes, but is not limited to, bolts, screws, locks, etc. By applying a locking force in the up-down direction to the chemical chamber 40 through the fastener 80, the pressing force between the sealing area 402 of the chemical chamber 40 and the mating component can be increased, thereby improving the sealing effect, so as to meet the waterproof and dustproof requirements. For example, when the sealing area 402 is in contact with the mating component for sealing, the fastener 80 can be used to increase the pressing force between the two sealing surfaces, reduce the gap to improve the sealing effect; in the embodiment of sealing by the sealing ring 70, the locking force provided by the fastener 80 can be used to clamp the sealing ring 70 between the chemical chamber 40 and the mating component, and the sealing ring 70 is compressed and deformed to improve the sealing effect.

[0090] According to some embodiments of the present invention, Figure 3 As shown, the mounting point 50 includes a first mounting point 51, and the first mounting point 51 is used to connect with the matching component so that the matching component covers the top opening. For example, the matching component can be a floor, and the floor can include a front floor 21, or the floor includes a rear floor 31, or the floor includes both the front floor 21 and the rear floor 31. The chemical chamber 40 is connected to the matching component through the first mounting point 51. On the one hand, the installation of the chemical chamber 40 can be realized, and the first mounting point 51 is located outside the sealing area 402 to reduce the sealing failure factor inside the sealing area 402; on the other hand, the first mounting point 51 of the chemical chamber 40 is directly connected to the matching component, which has a more significant effect on improving the sealing between the chemical chamber 40 and the matching component.

[0091] For example, the first mounting point 51 may include a mounting hole extending in the up-down direction, and the fastener 80 is passed through the mounting hole and the mating component to apply a pressing force in the up-down direction to the sealing area 402 and the mating component to improve the sealing effect.

[0092] In some specific embodiments, Figure 3 As shown, the chemical chamber 40 includes a side beam 45 and a first convex portion 41 , the first convex portion 41 is arranged on the upper part of the outer peripheral surface of the side beam 45 , the sealing area 402 is arranged on the upper surface of the side beam 45 , and the first mounting point 51 is arranged on the first convex portion 41 .

[0093] The side beam 45 can be used to define the accommodating space 401, the upper end of the side beam 45 is surrounded by a top opening, and the sealing area 402 is arranged on the upper surface of the side beam 45, so that the sealing area 402 can surround the top opening, so as to achieve a comprehensive sealing of the top opening. The first mounting point 51 is arranged on the upper part of the outer peripheral surface of the first outer protrusion 41, so that the distance between the first mounting point 51 and the sealing area 402 is closer, and the connection between the first mounting point 51 and the matching component improves the effect of the pressing force of the sealing area 402.

[0094] In some embodiments, continue to refer to Figure 3 As shown, the mounting point 50 includes a second mounting point 52 for connection with the rocker beam 22 .

[0095] The threshold beam 22 is a very important protective component of the vehicle 1000, which can effectively resist external intrusion in the side collision of the vehicle 1000, protect the integrity of the passenger compartment, and reduce the damage to the passengers in the vehicle. The chemical chamber 40 is connected to the threshold beam 22 through the second mounting point 52. The first mounting point 51 and the second mounting point 52 cooperate to increase the connection points of the chemical chamber 40, which can improve the installation stability of the chemical chamber 40 and is conducive to improving the sealing effect of the sealing area 402.

[0096] In some specific embodiments, Figure 3As shown, the chemical chamber 40 includes a side beam 45, a first outer protrusion 41 arranged at the upper part of the outer peripheral surface of the side beam 45, and a second outer protrusion 42 arranged at the lower part of the outer peripheral surface of the side beam 45, a sealing area 402 is arranged on the upper end surface of the side beam 45, a first mounting point 51 is arranged on the first outer protrusion 41, and a second mounting point 52 is arranged on the second outer protrusion 42.

[0097] The first outer protrusion 41 and the second outer protrusion 42 are respectively arranged on the upper and lower parts of the outer peripheral surface of the side beam 45, so that the connection with the door sill beam 22 and the floor does not interfere with each other, and the chemical chamber 40 can be installed in a larger range in the up and down directions, thereby improving the installation stability.

[0098] In some embodiments, the distance between the first mounting point 51 and the outer periphery of the sealing area 402 is smaller than the distance between the second mounting point 52 and the outer periphery of the sealing area 402. The first mounting point 51 is closer to the sealing area 402, and the effect of improving the sealing is better. Specifically, in the inward and outward directions, that is, in the direction away from and close to the middle of the accommodating space 401, and in the direction perpendicular to the outer peripheral surface of the side beam 45, the size of the first protrusion 41 protruding from the outer peripheral surface of the side beam 45 is smaller than the size of the second protrusion 42 protruding from the outer peripheral surface of the side beam 45, so that the first mounting point 51 is closer to the sealing area 402 than the second mounting point 52, and the high strength of the second protrusion 42 can provide more stable support and installation for the chemical chamber 40, thereby improving stability.

[0099] In some embodiments of the present application, the vehicle body 100 may not need to be provided with a floor such as the front floor 21. When the vehicle body 100 and the upper vehicle body 200 are assembled, the chemical chamber 40 cooperates with the floor of the upper vehicle body 200 to achieve sealing. The floor does not occupy the space of the vehicle body 100, and the vehicle body 100 can provide more space for installing the battery cells 60, thereby facilitating the improvement of the power density.

[0100] In other embodiments of the present application, Figure 1-Figure 5 As shown, the vehicle body 100 also includes a floor, which is a matching component and is sealed with the sealing area 402 to cover the top opening. In other words, the floor is integrated into the vehicle body 100, and the upper vehicle body 200 does not need to be provided with a floor. Before the vehicle body 100 and the upper vehicle body 200 are assembled, the floor and the chemical chamber 40 can be sealed and connected, which is easy to improve the convenience of sealing operation and the sealing effect. In addition, the airtightness detection between the floor and the chemical chamber 40 does not need to be detected together with the white body, and the general assembly workshop does not need to develop a chemical chamber 40 detection line and a repair line, which is conducive to improving the production cycle and reducing costs and working hours.

[0101] In addition, the floor extends continuously in a portion opposite to the area enclosed by the sealing area 402. In other words, this portion of the floor is not provided with any process holes and is a complete plate, which does not need to be sealed or blocked, thereby reducing the area prone to sealing failure and improving the sealing reliability.

[0102] It should be noted that the continuously extending portion of the floor can extend along a plane or be formed with a concave-convex structure. The floor can be a single-layer board or a multi-layer board. For a single-layer board, the portion of the single-layer board opposite to the area enclosed by the sealing area 402 extends continuously; for a multi-layer board, the multi-layer board bodies are stacked in the up-down direction, and the portion opposite to the sealing area 402 can be continuously extended by one layer of the board body, the multi-layer board body, or all the board bodies, which can make the portion of the floor opposite to the area enclosed by the sealing area 402 extend continuously.

[0103] In some specific embodiments, the floor includes a front floor 21, and the front floor 21 also has a connection point, which is used to connect with at least one of the door sill beam 22, the rear floor 31 and the front panel 11, and the connection method includes but is not limited to welding, bonding, and connection with fasteners 80. And the connection point is located outside the area enclosed by the sealing area 402. Therefore, the lap joints, welding points, glue coating, etc. on the front floor 21 that may become factors affecting the failure of the seal are all located outside the area enclosed by the sealing area 402, further reducing the risk of failure of the seal of the chemical chamber 40.

[0104] In some embodiments, Figure 3 As shown, a connection portion 211 connected to the door sill beam 22 is provided at the outer periphery of the front floor 21 , and the connection portion 211 is located outside the area enclosed by the sealing area 402 .

[0105] The connection method of the connection part 211 and the threshold beam 22 includes but is not limited to connection with a fastener 80, welding and bonding. For example, the connection part 211 can be sealed and connected to the threshold beam 22 by welding and bonding, so as to facilitate the sealing of the passenger compartment.

[0106] The specific structure of the connecting portion 211 is not limited, and may be a flange, a protrusion, or the like. Figure 3 As shown, the connecting portion 211 is a flange extending upward or downward relative to the front floor 21 , the middle portion of the flange can be bonded to the door sill beam 22 , and at least one of the upper and lower edges of the flange can be welded to the door sill beam 22 to improve the installation stability and sealing of the front floor 21 .

[0107] By locating the connection part 211 outside the area enclosed by the sealing area 402, the connection structure of the connection part 211 can have no effect on the sealing of the chemical chamber 40, and the failure of the sealing of the connection part 211 will not lead to the failure of the sealing of the chemical chamber 40, and the height difference of the connection part 211 will not affect the difficulty of sealing the chemical chamber 40.

[0108] According to some embodiments of the present invention, Figure 4As shown, the mounting point 50 may include a third mounting point 53, which is used to connect to the front panel 11. The third mounting point 53 can be used to mount and fix the chemical chamber 40 from the front side, thereby improving the stability of the chemical chamber 40 and the uniformity of the force applied to the chemical chamber 40 in the circumferential direction.

[0109] In addition, the floor (such as the front floor 21) includes a first mating edge 212 that is at least partially located outside the area enclosed by the sealing area 402, and the upper surface of the first mating edge 212 is used to relatively match with the lower surface of the front panel 11. Therefore, from top to bottom, the front panel 11, the first mating edge 212, the sealing area 402 and the chemical chamber 40 are arranged in sequence. When the third mounting point 53 is connected to the front panel 11, the front panel 11 can limit the first mating edge 212 of the floor from the upper side and apply a pressing force to the first mating edge 212 to improve the sealing between the first mating edge 212 and the sealing area 402. In the embodiment including the sealing ring 70, the pressing force of the front panel 11 enables the first mating edge 212 and the sealing area 402 to clamp the sealing ring 70, thereby improving the sealing effect.

[0110] Optionally, the first mating edge 212 can be connected to the front panel 11 by welding or other means, and the first mating edge 212 is at least partially located outside the area enclosed by the sealing area 402, so that the connection point can be arranged outside the area enclosed by the sealing area 402 to reduce the factors affecting the sealing failure of the chemical chamber 40 and reduce the risk of sealing failure.

[0111] In some specific embodiments, continue to refer to Figure 4 As shown, the chemical chamber 40 includes a side beam 45 and a third outer protrusion 43 arranged on the upper part of the outer circumference of the side beam 45 , the sealing area 402 is arranged on the upper surface of the side beam 45 , and the third mounting point 53 is arranged on the third outer protrusion 43 .

[0112] The third mounting point 53 is closer to the sealing area 402, which is more conducive to improving the sealing effect of the sealing area 402. In addition, the third mounting point 53 is arranged on the third outer protrusion 43, which facilitates the installation operation at the third mounting point 53. The third outer protrusion 43 can also improve the structural strength of the side beam 45 and improve the anti-collision performance.

[0113] In some embodiments of the present invention, Figure 4As shown, the dash panel 11 includes a first panel body 111 and a first reinforcing plate 112 located at the lower side of the first panel body 111. The edge of the first reinforcing plate 112 is connected to the first panel body 111 and the middle part is separated from the first panel body 111, so that the first reinforcing plate 112 can strengthen the strength of the first panel body 111, and a cavity is formed between the first reinforcing plate 112 and the first panel body 111. The first mating edge 212 is located between the edge of the first reinforcing plate 112 and the sealing area 402, that is, the connection area between the first reinforcing plate 112 and the first panel body 111 is opposite to the first mating edge 212, the strength of the connection area is higher, and the pressing force applied to the first mating edge 212 is more stable. The third mounting point 53 can be connected to the middle part of the first reinforcing plate 112, and the connection structure does not need to be provided on the first panel body 111, which is conducive to improving the integrity of the first panel body 111. For example, the fastener 80 is provided through the third mounting point 53 and the first reinforcing plate 112, and extends into the cavity above the first reinforcing plate 112.

[0114] According to some embodiments of the present invention, Figure 5 As shown, the mounting point 50 includes a fourth mounting point 54, which is used to connect to the rear floor 31. The fourth mounting point 54 can be used to mount and fix the chemical chamber 40 from the rear side, thereby improving the stability of the chemical chamber 40 and the uniformity of the force applied to the chemical chamber 40 in the circumferential direction.

[0115] In addition, the floor includes a front floor 21, and the front floor 21 includes a second mating edge 213 at least partially located outside the area enclosed by the sealing area 402, and the upper surface of the second mating edge 213 is used to relatively match with the lower surface of the rear floor 31. Thus, from top to bottom, the rear floor 31, the second mating edge 213, the sealing area 402 and the chemical chamber 40 are arranged in sequence. When the fourth mounting point 54 is connected to the rear floor 31, the rear floor 31 can limit the second mating edge 213 of the front floor 21 from the upper side, and apply a pressing force to the second mating edge 213 to improve the sealing between the second mating edge 213 and the sealing area 402. In the embodiment including the sealing ring 70, the pressing force of the rear floor 31 enables the second mating edge 213 and the sealing area 402 to clamp the sealing ring 70, thereby improving the sealing effect.

[0116] Optionally, the second mating edge 213 can be connected to the rear floor 31 by welding or other means, and the second mating edge 213 is at least partially located outside the area enclosed by the sealing area 402, so that the connection point can be arranged outside the area enclosed by the sealing area 402 to reduce the factors affecting the sealing failure of the chemical chamber 40 and reduce the risk of sealing failure.

[0117] In some specific embodiments, continue to refer to Figure 5As shown, the chemical chamber 40 includes a side beam 45 and a fourth outer protrusion 44 arranged on the upper part of the outer circumference of the side beam 45 , the sealing area 402 is arranged on the upper surface of the side beam 45 , and the fourth mounting point 54 is arranged on the fourth outer protrusion 44 .

[0118] The fourth mounting point 54 is closer to the sealing area 402, which is more conducive to improving the sealing effect of the sealing area 402. In addition, the fourth mounting point 54 is arranged on the fourth outer protrusion 44, which facilitates the installation operation at the fourth mounting point 54. The fourth outer protrusion 44 can also improve the structural strength of the side beam 45 and improve the anti-collision performance.

[0119] In some embodiments of the present invention, Figure 5 As shown, the rear floor 31 includes a second plate body 311 and a second reinforcing plate 312 located at the lower side of the second plate body 311. The edge of the second reinforcing plate 312 is connected to the second plate body 311 and the middle part is separated from the second plate body 311, so that the second reinforcing plate 312 can strengthen the strength of the second plate body 311, and a cavity is formed between the second reinforcing plate 312 and the second plate body 311. The second mating edge 213 is located between the edge of the second reinforcing plate 312 and the sealing area 402, that is, the connection area between the second reinforcing plate 312 and the second plate body 311 is opposite to the second mating edge 213, the strength of the connection area is higher, and the pressing force applied to the second mating edge 213 is more stable. The fourth connecting member is connected to the middle part of the second reinforcing plate 312, and the connecting structure does not need to be provided on the second plate body 311, which is conducive to improving the integrity of the second plate body 311. For example, the fastener 80 is provided through the fourth mounting point 54 and the second reinforcing plate 312, and extends into the cavity above the second reinforcing plate 312.

[0120] According to some embodiments of the present invention, the vehicle body 100 includes a front cabin assembly 10 and a rear floor assembly 30, the chemical chamber 40 is connected between the front cabin assembly 10 and the rear floor assembly 30, and the chemical chamber 40 is suitable for being detachably connected to the upper body 200 of the vehicle 1000, and the upper body 200 includes matching parts such as a floor.

[0121] The chemical chamber 40 is connected between the front cabin assembly 10 and the rear floor assembly 30 , and the connection method may be a detachable connection or a fixed connection, for example, it may be welding, bonding, fastener 80 connection, etc.

[0122] The chemical chamber 40 is detachably connected to the upper body 200, and the upper body 200 includes matching parts, so that the chemical chamber 40 can be separated from the upper body 200 when the chemical chamber 40 needs to be repaired, thereby separating the chemical chamber 40 from the matching parts, and the chemical chamber 40 is easy to repair.

[0123] According to other embodiments of the present invention, Figure 1 and Figure 2As shown, the vehicle body 100 includes a front cabin assembly 10, a front floor assembly 20 and a rear floor assembly 30. The front floor assembly 20 is connected between the front cabin assembly 10 and the rear floor assembly 30 to form a whole. The connection mode can be a detachable connection or a fixed connection. The front floor assembly 20 includes a matching component, for example, the matching component is a front floor 21. The front floor assembly 20 includes a threshold beam 22 and the front floor 21 connected to the threshold beam 22, so that the matching component is integrated on the vehicle body 100. The chemical chamber 40 is located at the lower side of the front floor assembly 20 and is detachably connected to the front floor assembly 20.

[0124] When inspecting and repairing the chemical chamber 40, the chemical chamber 40 can be removed from the vehicle body 100 and disassembled from the matching parts to achieve the disassembly of the chemical chamber 40. The disassembly process is not affected by the parts inside the passenger compartment, and there is no need to disassemble the parts inside the passenger compartment, thereby simplifying the disassembly and assembly process.

[0125] like Figure 1-Figure 5 As shown, the connection structure of the chemical chamber 40 according to the second embodiment of the present invention includes: the chemical chamber 40, a matching component and a sealing ring 70. The chemical chamber 40 defines a receiving space 401 for receiving the battery cell 60 and a top opening connected to the receiving space 401, and the matching component covers the top opening. The sealing ring 70 is arranged between the matching component and the chemical chamber 40 and extends around the top opening, wherein the portion of the matching component opposite to the area enclosed by the sealing ring 70 extends continuously.

[0126] The matching parts include but are not limited to a cover, a floor, etc., and the floor may include at least one of a front floor 21 and a rear floor 31 .

[0127] According to the connection structure of the chemical chamber 40 of the embodiment of the present invention, the top opening of the chemical chamber 40 is sealed by a matching component, and the portion opposite to the area enclosed by the matching component and the sealing ring 70 extends continuously, which can reduce the factors affecting the sealing failure between the matching component and the chemical chamber 40 and improve the sealing reliability.

[0128] It should be noted that the connection structure of the vehicle body 100 according to the first embodiment and the chemical chamber 40 according to the second embodiment of the present invention can be cross-referenced with each other, all technical features of the vehicle body 100 according to the first embodiment can be introduced into the connection structure of the chemical chamber 40 according to the second embodiment, and all technical features of the connection structure of the chemical chamber 40 according to the second embodiment can be introduced into the vehicle body 100 according to the first embodiment, which will not be repeated here.

[0129] In some embodiments, Figure 3-Figure 5As shown, the chemical chamber 40 is provided with a mounting point 50, which is used to connect with at least one of the matching component and the front panel 11, and the mounting point 50 is located outside the area enclosed by the sealing ring 70. In this way, the joints of the matching component and the part of the chemical chamber 40 opposite to the area enclosed by the sealing area 402 can be reduced, the flatness can be improved, and it is also helpful to reduce the factors affecting the failure of the seal and improve the reliability of the seal.

[0130] In some embodiments, Figure 3-Figure 5 As shown, the mating component includes a front floor 21 and is provided with a connection point, which is used to connect with at least one of the door sill beam 22, the rear floor 31 and the front wall panel 11, and the connection point is located outside the area surrounded by the sealing ring 70. Therefore, the lap joints, welding points, glue coating and other factors on the front floor 21 that may cause sealing failure are all located outside the area surrounded by the sealing area 402, further reducing the risk of sealing failure of the chemical chamber 40.

[0131] like Figure 6 As shown, a vehicle 1000 according to an embodiment of the third aspect of the present invention comprises an upper vehicle body 200 and a vehicle body 100 according to an embodiment of the present invention, wherein the vehicle body 100 is arranged at the lower side of the upper vehicle body 200; or a connection structure of a chemical chamber 40 according to an embodiment of the present invention. Thus, by adopting the above-mentioned vehicle body 100 or the above-mentioned connection structure of the chemical chamber 40, the factors that easily lead to sealing failure in the area enclosed by the sealing area 402 can be reduced, thereby improving the sealing reliability.

[0132] When the chemical chamber 40 is used in the vehicle 1000, the battery cells 60 in the chemical chamber 40 can be used to power the vehicle 1000, for example, as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller and a motor, and the controller is used to control the chemical chamber 40 to power the motor, for example, for the starting, navigation and driving of the vehicle 1000.

[0133] According to the fourth aspect of the present invention, the assembly method is used for the vehicle body 100, and the assembly method may include:

[0134] The sealing area 402 of the chemical chamber 40 is sealed with a matching component to cover the top opening of the chemical chamber 40;

[0135] The mounting point 50 of the chemical chamber 40 is connected to at least one of the mating component and the dash panel 11 to compress the sealing area 402 .

[0136] According to the assembly method of the embodiment of the present invention, the sealing effect can be improved to meet the waterproof and dustproof requirements by sealing the matching component with the chemical chamber 40, and the chemical chamber 40 is connected through the installation point 50 to compress the sealing area 402. At the same time, the connection structure of the installation point 50 is located outside the area enclosed by the sealing area 402. After the assembly is completed, the factors that cause the sealing failure between the matching component and the chemical chamber 40 can be reduced, and the sealing reliability can be improved.

[0137] A vehicle body 100 and a vehicle 1000 having the same according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

[0138] like Figure 1-Figure 6 As shown, the vehicle 1000 includes an upper vehicle body 200 and a vehicle body 100, wherein the vehicle body 100 includes a front cabin assembly 10, a front floor assembly 20, a rear floor assembly 30, a chemical chamber 40 and a sealing ring 70. The front cabin assembly 10 includes a front panel 11; the front floor assembly 20 includes a threshold beam 22, a front floor 21 and a seat mounting beam 90, wherein the seat mounting beam 90 is disposed above the front floor 21 and connected to the threshold beam 22; the rear floor assembly 30 includes a rear floor 31; the chemical chamber 40 includes a frame and a bottom plate, wherein the frame includes a plurality of side beams 45 connected end to end and an outer protrusion disposed on the outer peripheral surface of the side beam 45, and the frame defines a containing space 401, a top opening and a lower end opening, and the bottom plate covers the lower end opening of the frame. The chemical chamber 40 is formed as a chamber body without an upper cover and is mounted on the vehicle body 100.

[0139] The front floor 21 covers the top opening of the chemical chamber 40 and is sealed by a sealing ring 70. The front floor 21 has both the function of the passenger compartment floor and the function of the upper cover of the chemical chamber 40. The mounting points 50 of the chemical chamber 40 are located outside the sealing ring 70 and are evenly arranged. The mounting points 50 are connected to the front floor 21, the front panel 11 and the rear floor 31 through fasteners 80 to achieve uniform compression of the sealing ring 70.

[0140] Furthermore, the front floor 21 is a complete part, and the corresponding front floor 21 in the area enclosed by the sealing ring 70 does not have any process holes and no splicing joints. After the front floor assembly 20 is welded and airtightness tested, the welding points between the front floor assembly 20 and the front cabin assembly 10, and between the rear floor assembly 30 and the front floor assembly 20 are all outside the sealing ring 70. The front side of the front floor 21 extends to the bottom of the front panel 11, and the overlapping surface between the front floor 21 and the front panel 11 is outside the sealing ring 70; the rear side of the front floor 21 extends to the bottom of the rear floor 31, and the overlapping surface between the front floor 21 and the rear floor 31 is outside the sealing ring 70. In this way, the entire surface of the front floor 21 is sealed with the chemical chamber 40, and the sealing surface between the front floor 21 and the chemical chamber 40 is a complete plane.

[0141] In the above embodiment, the front floor 21 replaces the traditional upper cover, reducing the number of parts and the occupied space, which is conducive to improving energy density. In addition, all the connection structures of the front floor 21 and all the installation points 50 of the chemical chamber 40 are arranged outside the sealing ring 70, and the part of the front floor 21 opposite to the area enclosed by the sealing ring 70 does not have any process holes, which effectively reduces the factors affecting the failure of the seal and improves the reliability of the seal.

[0142] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0143] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle body, characterized in that: include: A chemical chamber, wherein the chemical chamber defines a receiving space for receiving a battery cell and a top opening communicating with the receiving space, wherein: The chemical warehouse is provided with a sealing area and an installation point. The sealing area extends around the top opening and is used to seal with a matching component so that the matching component covers the top opening. The installation point is used for the installation of the chemical warehouse and is located outside the area enclosed by the sealing area.

2. The vehicle body according to claim 1, characterized in that: The sealing area is a smooth surface.

3. The vehicle body according to any one of claims 1 to 2, characterized in that: A sealing ring is also included, and the sealing ring is in sealing contact with the sealing area.

4. The vehicle body according to any one of claims 1 to 3, characterized in that: The mounting point includes a mounting hole for mounting a fastener, and the fastener is used to apply a locking force in an up-and-down direction to the chemical chamber to compress the sealing area.

5. The vehicle body according to any one of claims 1 to 4, characterized in that: The mounting points include a first mounting point for connection with a mating component.

6. The vehicle body according to claim 5, characterized in that: The mounting points include a second mounting point for connection with a sill beam.

7. The vehicle body according to claim 6, characterized in that: The chemical chamber includes a side beam, a first convex portion arranged at the upper part of the outer peripheral surface of the side beam, and a second convex portion arranged at the lower part of the outer peripheral surface of the side beam, the sealing area is arranged on the upper end surface of the side beam, the first mounting point is arranged at the first convex portion, and the second mounting point is arranged at the second convex portion.

8. The vehicle body according to any one of claims 1 to 7, characterized in that: The invention also comprises a floor panel, which is the matching component and is sealingly matched with the sealing area to cover the top opening, and the floor panel continuously extends from a portion opposite to the area enclosed by the sealing area.

9. The vehicle body according to claim 8, characterized in that: The floor comprises a front floor, and a connecting portion connected to a door sill beam is provided on an outer peripheral edge of the front floor, and the connecting portion is located outside an area enclosed by the sealing area.

10. The vehicle body according to claim 8 or 9, characterized in that: The mounting points include a third mounting point, which is used to connect to the front panel. The floor includes a first mating edge that is at least partially located outside the area enclosed by the sealing area, and the upper surface of the first mating edge is used to relatively mate with the lower surface of the front panel.

11. The vehicle body according to claim 10, characterized in that: The chemical chamber comprises a side beam and a third convex portion arranged on the upper portion of the outer peripheral surface of the side beam, the sealing area is arranged on the upper surface of the side beam, and the third mounting point is arranged on the third convex portion.

12. The vehicle body according to any one of claims 8 to 11, characterized in that: The mounting points include a fourth mounting point, which is used to connect to the rear floor. The floor includes a front floor, and the front floor includes a second mating edge that is at least partially located outside the area enclosed by the sealing area. The upper surface of the second mating edge is used to relatively mate with the lower surface of the rear floor.

13. The vehicle body according to claim 12, characterized in that: The chemical chamber comprises a side beam and a fourth convex portion arranged on the upper portion of the outer peripheral surface of the side beam, the sealing area is arranged on the upper surface of the side beam, and the fourth mounting point is arranged on the fourth convex portion.

14. The vehicle body according to any one of claims 1 to 13, characterized in that: It comprises a front compartment assembly and a rear floor assembly, wherein the chemical chamber is connected between the front compartment assembly and the rear floor assembly, and the chemical chamber is suitable for being detachably connected to an upper body of a vehicle, and the upper body comprises the matching component.

15. The vehicle body according to any one of claims 1 to 13, characterized in that: It includes a front cabin assembly, a front floor assembly and a rear floor assembly, wherein the front floor assembly is connected between the front cabin assembly and the rear floor assembly, the front floor assembly includes the matching component, and the chemical chamber is located at the lower side of the front floor assembly and is detachably connected to the front floor assembly.

16. A chemical chamber connection structure, characterized in that: include: A chemical chamber, wherein the chemical chamber defines a receiving space for receiving a battery cell and a top opening communicating with the receiving space; a mating component, the mating component covering the top opening; A sealing ring is disposed between the matching component and the chemical chamber and extends around the top opening, wherein a portion of the matching component opposite to the area enclosed by the sealing ring extends continuously.

17. The connection structure of the chemical chamber according to claim 16, characterized in that: The chemical chamber is provided with a mounting point, the mounting point is used to connect with at least one of the matching component and the front panel, and the mounting point is located outside the area enclosed by the sealing ring; and / or, The matching component includes a front floor and is provided with a connection point, wherein the connection point is used to connect with at least one of a sill beam, a rear floor and a front panel, and the connection point is located outside the area surrounded by the sealing ring.

18. A vehicle, characterized in that: It comprises an upper vehicle body and a vehicle body as described in any one of claims 1-15, wherein the vehicle body is arranged on the lower side of the upper vehicle body; or it comprises a connecting structure of a chemical chamber as described in any one of claims 16-17.

19. An assembly method, characterized in that: For a vehicle body according to any one of claims 1 to 15, the assembly method comprises: Sealing the sealing area of ​​the chemical chamber with the matching component to cover the top opening of the chemical chamber; Connect the mounting point of the chemical tank to at least one of the mating component and the front panel to compress the sealing area.

Images